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Time and units of measurement

Daylight saving time operates in NSW, VIC, TAS, SA and the ACT from 2am on the first Sunday in October to 3am on the first Sunday in April.

Official information on daylight saving is available from this Australian Government information site. WorldTimeZone provides a useful summary of Daylight Time changeover dates worldwide. (22/01/10)

States Hours to add to UTC (GMT) to get Standard Time Hours to add to UTC (GMT) to get Daylight Saving Time
ACT, NSW, Victoria, Tasmania +10 = Eastern Standard Time +11 = Eastern Daylight Saving Time
Queensland +10 = Eastern Standard Time Does not use Daylight Saving Time
South Australia +9.5 = Central Standard Time +10.5 = Central Daylight Saving Time
Northern Territory +9.5 = Central Standard Time Does not use Daylight Saving Time
Western Australia +8 = Western Standard Time Does not use Daylight Saving Time

Useful time-related sites:

  1. Time conversion -- the time now across Australia (22/01/10)
  2. All about time from the US Navy (22/01/10)
  3. History of Daylight Saving Time switch-over dates in Australia from the BoM (22/01/10)
  4. How Daylight Saving Time affects weather data collection in Australia from the BoM (22/01/10)

Units of Measurement

  1. A conversion calculator to convert temperature, pressure, rainfall and wind measurements between different units. From the BoM (04/10/02)
  2. A humidity calculator to calculate relative humidity from the dry bulb temperature and wet bulb or dew point temperature. From the BoM (04/10/02)